Converts one of the possible outputs of the function cwt
to modulus and phase.
Usage
cwtpolar(cwt, threshold=0)
Arguments
cwt
3D array containing the values of a continuous wavelet
transform in the format (signal size $\times$ noctave
$\times$ nvoice) as in the output of the function
cwt with the logical flag twodimension
threshold
value of a level for the absolute value of the modulus below which
the value of the argument of the output is set to $-\pi$.
Value
Modulus and Argument of the values of the continuous wavelet transform
output13D array giving the values (in the same format as the input) of the
modulus of the input.
output23D array giving the values of the argument of the input.
Details
The output contains the (complex) values of the wavelet transform of the
input signal. The format of the output can be
2D array (signal size $\times$ nb_scales)
3D array (signal size $\times$ noctave $\times$ nvoice)
References
See discussions in the text of ``Practical Time-Frequency Analysis''.